99 balloons on their way to the horizon! For your next party, club meeting or Vespa Birthday, you name it! Our black logo balloons have a diameter of 30cm, corresponds to about 15 liters volume. Material is 100% natural rubber, non-toxic, biodegradable. Certified brand quality from Europe. Suitable for air and helium filling, flight duration 6-8 hours at 20 ° C. Helium balloon filling quantit: 0.015 m³. Capacity with helium filling: 8-9 grams. Filled with Helium this balloon carries a postcard.